发明申请
- 专利标题: Radio Frequency Filter
- 专利标题(中): 射频滤波器
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申请号: US12917917申请日: 2010-11-02
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公开(公告)号: US20110140803A1公开(公告)日: 2011-06-16
- 发明人: Duk-Yong KIM , Nam-Shin PARK
- 申请人: Duk-Yong KIM , Nam-Shin PARK
- 申请人地址: KR Gyeonggi-do
- 专利权人: KMW INC.
- 当前专利权人: KMW INC.
- 当前专利权人地址: KR Gyeonggi-do
- 主分类号: H01P5/18
- IPC分类号: H01P5/18
摘要:
A Radio Frequency (RF) filter configured by combining a hybrid coupler with a general filter, for having different characteristics from original characteristics of a general filter is provided, in which a coupler receives an input signal through a first port, divides the input signal, outputs the divided signals through second and third ports, combines signals received through the second and third ports according to phases of the signals, and outputs the combined signal through the first port or as an output signal of the RF filter through a fourth port, and a first filter unit has a first port connected to the second port of the coupler and a second port connected to the third port of the coupler, for having a predetermined frequency filtering characteristic.
公开/授权文献
- US08749321B2 Radio frequency filter 公开/授权日:2014-06-10